GMC Cadillac XT4 2019 Owner's Manual page 198

prevent draining the battery, avoid
repeated cycles of the EPB system
when the engine is not running.
The system has a Electric Parking
Brake light, and a Service Parking
Brake light.
See Electric Parking Brake Light 0 133
and Service Electric Parking Brake Light
0 134.
Before leaving the vehicle, check for
the light to ensure that the
parking brake is applied.
EPB Apply
To apply the EPB:
1. Be sure the vehicle is at a
complete stop.
2. Press the EPB switch
momentarily.
The light will flash and then stay
on once the EPB is fully applied. If
the light flashes continuously,
then the EPB is only partially applied
or there is a problem with the EPB.
A DIC message will display. Release
the EPB and try to apply it again.
If the light does not come on, or keeps
flashing, have the vehicle serviced. Do
not drive the vehicle if the
flashing. See your dealer. See Electric
Parking Brake Light 0 133.
If the light is on, press the EPB
switch and hold it. Continue to hold
the switch until the light remains
on. If the light remains on, see your
dealer.
If the EPB is applied while the vehicle
is moving, the vehicle will decelerate
as long as the switch is pressed. If the
switch is pressed until the vehicle
comes to a stop, the EPB will remain
applied.
The vehicle may automatically apply
the EPB in some situations when the
vehicle is not moving. This is normal,
and is done to periodically check the
correct operation of the EPB system.
If the EPB fails to apply, block the rear
wheels to prevent vehicle movement.
DRIVING AND OPERATING
EPB Release
To release the EPB:
light is
1. Turn the ignition on or to ACC/
ACCESSORY.
2. Apply and hold the brake pedal.
3. Press the EPB switch
momentarily.
The EPB is released when the
light is off.
If the light is on, release the EPB by
pressing and holding the EPB switch.
Continue to hold the switch until
the light is off. If either light stays
on after release is attempted, see your
dealer.
Caution
Driving with the parking brake on
can overheat the brake system and
cause premature wear or damage to
brake system parts. Make sure that
the parking brake is fully released
and the brake warning light is off
before driving.
197